21070147276

素因数分解:

$2^2\times {\mathrm{17}}^3\times {\mathrm{1072163}}^1$

素因数の和:1072218

約数の個数: 24

約数和(自身を含む): 39176872560

約数和(自身を除く): 18106725284

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 4913, 9826, 19652, 1072163, 2144326, 4288652, 18226771, 36453542, 72907084, 309855107, 619710214, 1239420428, 5267536819, 10535073638, 21070147276]

約数ペア:

[(1, 21070147276), (2, 10535073638), (4, 5267536819), (17, 1239420428), (34, 619710214), (68, 309855107), (289, 72907084), (578, 36453542), (1156, 18226771), (4913, 4288652), (9826, 2144326), (19652, 1072163)]